farfli | afd0a7bab6c3864bfd1d8718be3db3d2b42624493e2b32d7cc3c554bde84d909

Analysis

max time kernel
149s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
24/09/2026, 09:28

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General

Target
afd0a7bab6c3864bfd1d8718be3db3d2b42624493e2b32d7cc3c554bde84d909.exe
Size 649KB
Sample260924-lfsvcssbmc
SHA256 afd0a7bab6c3864bfd1d8718be3db3d2b42624493e2b32d7cc3c554bde84d909
MD5 ce245084236cae9de40ad7f1e2ffa180
SHA1 eab73b64244666b961721a37139fe07b7debbf8d
SHA512 d46404386ffb9bb7f74d83a1a325583bedaa63ad98787b27f577d919fb5b95d7b33779b1321eea14e87cb92536cafaf3c407a37106fc6551faae52aa0be50e53
SSDEEP 6144:PQJf3uMxrbLgEN6S7KzA5x3S5+y3D82oC0UdkgxgfOqv:4J130ENL7kArI+y3XipfO0
TLSH
T1D0E412F11A64D42FE09840B6E75DE83266E0CCC239A10B3297E5BB1DB3C950BF979635
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit defense_evasion discovery execution farfli persistence spyware stealer

Malware Config

Signatures

Family: Farfli
Farfli is a Windows backdoor written in C++.
backdoor farfli

Detects Farfli Backdoor 2 IoCs

resource	yara_rule
behavioral1/memory/3088-17-0x0000000010000000-0x0000000010054000-memory.dmp	family_farfli
behavioral1/memory/3088-21-0x0000000010000000-0x0000000010054000-memory.dmp	family_farfli

Badlisted process makes network request 15 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
31	3088	rundll32.exe
32	3088	rundll32.exe
33	3088	rundll32.exe
34	3088	rundll32.exe
35	3088	rundll32.exe
41	3088	rundll32.exe
54	3088	rundll32.exe
58	3088	rundll32.exe
63	3088	rundll32.exe
66	3088	rundll32.exe
69	3088	rundll32.exe
70	3088	rundll32.exe
71	3088	rundll32.exe
72	3088	rundll32.exe
73	3088	rundll32.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1696934516-3600988056-1840298893-1000\Control Panel\International\Geo\Nation	rundll32.exe

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
4840	wjwtzj.exe

Executes dropped EXE 3 IoCs

pid	Process
4840	wjwtzj.exe
4076	wiseman.exe
3960	wiseman.exe

Loads dropped DLL 1 IoCs

pid	Process
3088	rundll32.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1696934516-3600988056-1840298893-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Wiseman = "C:\\wiseman.exe"	wiseman.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1696934516-3600988056-1840298893-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\abvxu\\ylvkirpn.lky\",RAFlush"	rundll32.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
948	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	afd0a7bab6c3864bfd1d8718be3db3d2b42624493e2b32d7cc3c554bde84d909.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wjwtzj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wiseman.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wiseman.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
948	cmd.exe
3324	PING.EXE

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3324	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe
3088	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3088	rundll32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1904	afd0a7bab6c3864bfd1d8718be3db3d2b42624493e2b32d7cc3c554bde84d909.exe
4840	wjwtzj.exe
4076	wiseman.exe
3960	wiseman.exe
4076	wiseman.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 948	1904	afd0a7bab6c3864bfd1d8718be3db3d2b42624493e2b32d7cc3c554bde84d909.exe	88
PID 948 wrote to memory of 3324	948	cmd.exe	91
PID 948 wrote to memory of 4840	948	cmd.exe	94
PID 4840 wrote to memory of 3088	4840	wjwtzj.exe	95
PID 3088 wrote to memory of 4076	3088	rundll32.exe	96

C:\Users\Admin\AppData\Local\Temp\afd0a7bab6c3864bfd1d8718be3db3d2b42624493e2b32d7cc3c554bde84d909.exe
"C:\Users\Admin\AppData\Local\Temp\afd0a7bab6c3864bfd1d8718be3db3d2b42624493e2b32d7cc3c554bde84d909.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1904
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\wjwtzj.exe "C:\Users\Admin\AppData\Local\Temp\afd0a7bab6c3864bfd1d8718be3db3d2b42624493e2b32d7cc3c554bde84d909.exe"
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:948
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3324
- - C:\Users\Admin\AppData\Local\Temp\wjwtzj.exe
    C:\Users\Admin\AppData\Local\Temp\\wjwtzj.exe "C:\Users\Admin\AppData\Local\Temp\afd0a7bab6c3864bfd1d8718be3db3d2b42624493e2b32d7cc3c554bde84d909.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4840
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\abvxu\ylvkirpn.lky",RAFlush C:\Users\Admin\AppData\Local\Temp\wjwtzj.exe
      4⤵
      Badlisted process makes network request
      Checks computer location settings
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:3088
    - - C:\wiseman.exe
        
        "C:\wiseman.exe"
        5⤵
        Executes dropped EXE
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:4076

C:\wiseman.exe
C:\wiseman.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:3960

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

wjwtzj.exe

Path C:\Users\Admin\AppData\Local\Temp\wjwtzj.exe
Size 649KB
SHA256 6d1800bde4703be466b29ec0829597ae37ad8c3712b40b604f2ab6518ab1a45e
MD5 85ee54b61388ecb53c9e7997c6ddd24d
SHA1 0811c668b047c3cc060e7036aaaf09f37e1605bf
SHA512 67bf496c5e91c0011eb418b46b388a59ece6bc3e6f25ded3646cf57d12bfd8a6493f572d9d620c1cce901095b896b33d2275b790e06306c6d42b39470b7c34c2
SSDEEP 6144:PQJf3uMxrbLgEN6S7KzA5x3S5+y3D82oC0UdkgxgfOq:4J130ENL7kArI+y3XipfO
TLSH
T1EBE412F11A64D42FE09840B6E75DE83266E0CCC239A10B3297E5BB1DB3C950BF979635
MD5 SHA1 SHA512 SSDEEP TLSH

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wiseman.exe

Path C:\wiseman.exe
Size 378KB
SHA256 03505198d487e04a8ec82c627d34e4d9145f211140c4c8793b4461621e6bf6ce
MD5 8f242369cf14f2b26ced131d7dd67144
SHA1 d4f2f0f3047300ff5f36af6119ad5e109258fcd0
SHA512 4516b3fa2f68e64baf166bc7731ba3bb0ca53d36d71ff8fa78b1f211d7c14fc4442af50bd637d0c3f11913583c9c66996101d6e8738592a053e82a78bbd771f5
SSDEEP 6144:yraxNx1Gc9N6xJ/MO2N89M4qjGggUA0CthK1KLAb+AfQQIh+K+TuAubWq49OU/CU:ygVhNrAM1qgg2l
TLSH
T14B844C2152C61426E16B8232B4F7E3FAB53F940A56126BEBBB9CFE34C54E4533532349
MD5 SHA1 SHA512 SSDEEP TLSH

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ylvkirpn.lky

Path \??\c:\abvxu\ylvkirpn.lky
Size 155KB
SHA256 ec6ef50587a847d4a655e9bfc5c1aee4078005c0774a3e6fa23949cc4d8fbad3
MD5 20e7a8b973ac2b43c95ddb77308266c9
SHA1 e46e6ea272ae628d15bfb7b71ff40e3950fd2e85
SHA512 60b585b2de46ac412577eb590916d282bf3f25ba1196362a97c12620c3b6eb94a78e3faac182305002790bb9c3705a346e54508b644d3e9329201fcb4bad0fd6
SSDEEP 3072:YuTByM2ViNpg032aUgrhoiFmyt8KDZS1:ZByMnN+3d1
TLSH
T10FF36D1163FD4618F5F7BF356EB54A605E3ABC62AE38CB0C1650504E59B1F60DAB0B23
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1904-0-0x0000000000400000-0x000000000049E01B-memory.dmp

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memory/1904-2-0x0000000000400000-0x000000000049E01B-memory.dmp

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memory/3088-12-0x0000000010000000-0x0000000010054000-memory.dmp

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memory/3088-17-0x0000000010000000-0x0000000010054000-memory.dmp

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memory/3088-21-0x0000000010000000-0x0000000010054000-memory.dmp

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memory/4840-9-0x0000000000400000-0x000000000049E01B-memory.dmp

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